Required minimum distributions rules determine how much money you must withdraw from your tax-deferred retirement accounts each year once you reach a certain age. Understanding these rules is essential for every retiree who wants to avoid steep penalties and manage their tax burden effectively.
I have spent years helping retirees navigate the complexities of RMD regulations, and I have seen firsthand how costly mistakes can be when these rules are misunderstood. The IRS does not offer much flexibility for missed distributions, which makes knowing the requirements absolutely critical.
This guide covers everything you need to know about required minimum distributions in 2026, including calculation methods, deadlines, penalties, and strategies to minimize your tax impact.
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What Are Required Minimum Distributions?
Required minimum distributions are the minimum amounts you must withdraw annually from tax-deferred retirement accounts starting at age 73. The IRS mandates these withdrawals to ensure that retirement savings are actually used for retirement rather than passed on as tax-deferred inheritances.
When you contributed to your traditional IRA or 401(k), you received a tax deduction and your investments grew tax-deferred. The government essentially gave you a loan on the taxes, and RMD rules ensure they eventually collect on that debt.
Congress established RMD requirements through the Internal Revenue Code Section 401(a)(9). These rules apply to most employer-sponsored retirement plans and individual retirement arrangements. The SECURE Act 2.0, passed in 2022, raised the starting age from 72 to 73 beginning in 2023, giving retirees more time for tax-deferred growth.
When Do RMDs Start: Age 73 and Key Deadlines
You must take your first required minimum distribution for the year in which you turn age 73. This change from age 72 took effect beginning in 2023 thanks to the SECURE Act 2.0 legislation, and it provides an additional year of tax-deferred growth for many retirees.
For your first RMD only, you have a special deadline extension. You can delay taking your first distribution until April 1 of the year following the year you turn 73. This means if you turn 73 in 2026, you have until April 1 of the following year to take that first distribution.
Every subsequent RMD must be taken by December 31 of each year. This creates a potential tax trap for those who delay their first RMD. If you wait until April 1 for your first distribution, you will need to take a second RMD by December 31 of that same year. Two distributions in one year could push you into a higher tax bracket.
How to Calculate Your Required Minimum Distribution?
Calculating your RMD involves a straightforward three-step process. You divide your prior year-end account balance by a life expectancy factor from IRS tables. The result is your minimum required withdrawal amount for that year.
First, determine your account balance as of December 31 of the previous year. This is your starting point regardless of when during the current year you actually take the distribution.
Second, find the appropriate life expectancy factor from the IRS Uniform Lifetime Table. Most retirees use this table, which assumes you have a beneficiary who is exactly 10 years younger than you. The Single Life Expectancy Table applies only to beneficiaries of inherited accounts, while the Joint Life and Last Survivor Table is used in limited circumstances when your spouse is more than 10 years younger and is your sole beneficiary.
Third, divide your December 31 balance by the life expectancy factor. For example, at age 73, the Uniform Lifetime Table factor is 26.5. If your traditional IRA balance was $500,000 on December 31 of the previous year, your RMD would be $18,868 ($500,000 divided by 26.5). At age 80 with the same balance, the factor drops to 20.2, making your RMD $24,752.
Which Accounts Are Subject to RMD Rules?
RMD rules apply to most tax-deferred retirement accounts you have contributed to throughout your working years. Traditional IRAs, SEP IRAs, and SIMPLE IRAs all fall under these requirements. Employer-sponsored plans including 401(k)s, 403(b)s, and 457 plans are also subject to RMD rules.
Here is how different account types compare:
Traditional IRA: RMDs required starting at age 73. You can aggregate multiple traditional IRAs and take the total RMD from any one account.
SEP IRA: Treated the same as traditional IRAs for RMD purposes. Required distributions begin at age 73.
SIMPLE IRA: Follows traditional IRA RMD rules. Distributions must begin at age 73.
401(k), 403(b), 457: RMDs generally required at age 73. However, if you are still working and do not own more than 5% of the company, you may delay RMDs from your current employer’s plan until retirement.
Roth IRA: The original owner of a Roth IRA does not have to take RMDs during their lifetime. This is a significant advantage of Roth accounts.
Roth 401(k): RMDs are required from Roth 401(k) accounts starting at age 73. However, rolling the Roth 401(k) into a Roth IRA eliminates this requirement.
Penalties for Missing or Incorrect RMDs
The penalty for failing to take your full required minimum distribution is severe. The IRS charges a 25% excise tax on the amount that should have been withdrawn but was not. This is one of the steepest penalties in the tax code.
Fortunately, the SECURE Act 2.0 introduced some relief. If you correct the missed distribution within two years and file Form 5329 with your tax return, the penalty can be reduced to 10%. This makes it critical to discover and fix any missed RMDs as quickly as possible.
If you believe you had reasonable cause for missing an RMD, you can request a waiver of the penalty by filing Form 5329 and attaching a letter of explanation. The IRS is generally understanding about first-time mistakes, especially if you promptly correct the error once discovered.
Tax Implications and Strategic Considerations
Every dollar you withdraw as an RMD is treated as ordinary income for tax purposes. This means RMDs are taxed at your marginal federal tax rate, and potentially state tax rates as well. Unlike capital gains, which receive preferential tax treatment, retirement distributions face the full income tax rate.
RMDs can trigger a cascade of other tax consequences that many retirees overlook. Your RMD amount counts toward your combined income calculation for Social Security taxation purposes. If your combined income exceeds $25,000 for individuals or $32,000 for married couples, up to 85% of your Social Security benefits could become taxable.
Higher RMDs can also push your income above the thresholds for Medicare premium surcharges. In 2026, individuals with modified adjusted gross income above $106,000 and couples above $212,000 pay higher Part B and Part D premiums. These Income-Related Monthly Adjustment Amount charges can add hundreds of dollars per month to your healthcare costs.
Strategic planning can help manage these impacts. Some retirees choose to start withdrawals before age 73 to spread the tax burden over more years. Roth conversions during lower-income years can also reduce future RMD amounts.
Special Rules and Exceptions
Several important exceptions exist to the standard RMD rules. Understanding these can help you legally delay or reduce your required distributions.
If you continue working past age 73, you may be able to delay RMDs from your current employer’s 401(k), 403(b), or 457 plan. This exception only applies to your current employer’s plan, not to IRAs or plans from previous employers. The exception disappears if you own more than 5% of the company sponsoring the plan.
Qualified charitable distributions offer another powerful exception. Once you reach age 70.5, you can donate up to $108,000 annually (2026 limit) directly from your IRA to qualified charities. These QCDs count toward your RMD and are excluded from your taxable income. This strategy is particularly valuable for retirees who do not need their full RMD for living expenses.
Spousal beneficiaries have special privileges when inheriting retirement accounts. A surviving spouse can roll an inherited IRA into their own IRA, effectively treating it as if it were theirs all along. This allows them to delay RMDs until they reach age 73, rather than being subject to the 10-year rule.
Inherited IRA RMD Rules: The 10-Year Rule
The SECURE Act of 2019 dramatically changed RMD rules for most beneficiaries of inherited retirement accounts. The new rules generally require non-spouse beneficiaries to empty inherited traditional and Roth IRAs within 10 years of the original owner’s death.
This 10-year rule replaced the old stretch IRA provisions that allowed beneficiaries to take distributions over their own life expectancies. The change accelerates tax collection on inherited traditional IRAs and reduces the long-term growth potential of inherited Roth IRAs.
Certain eligible designated beneficiaries can still use the life expectancy method. This group includes surviving spouses, minor children of the account owner (until they reach majority), disabled individuals, chronically ill individuals, and beneficiaries not more than 10 years younger than the deceased.
Under the 10-year rule, no annual distributions are required during the 10-year period for accounts inherited after the SECURE Act. However, the entire account must be emptied by the end of the tenth year following the year of death. This gives beneficiaries flexibility in timing withdrawals to manage their tax brackets.
Common RMD Mistakes to Avoid
After reviewing thousands of retirement accounts over the years, I have identified the most common and costly RMD mistakes. Avoiding these errors can save you thousands in penalties and unnecessary taxes.
Mistake 1: Missing the first RMD deadline. Many retirees are confused by the April 1 extension and either miss it entirely or delay too long without realizing the two-RMD-year tax impact.
Mistake 2: Incorrect account aggregation. You can aggregate traditional IRA RMDs and take the total from any one traditional IRA. However, you cannot satisfy a 401(k) RMD by taking an IRA distribution, or vice versa. Each account type must be calculated separately.
Mistake 3: Forgetting Roth 401(k) RMDs. While Roth IRAs have no RMDs for the original owner, Roth 401(k) accounts do. Rolling your Roth 401(k) to a Roth IRA before age 73 eliminates this requirement.
Mistake 4: Using the wrong life expectancy table. Beneficiaries of inherited accounts must use the Single Life Expectancy Table, which produces higher RMDs than the Uniform Lifetime Table.
FAQ: Required Minimum Distributions Explained
What is the biggest RMD mistake?
What is the 4% rule for RMDs?
How much would RMD be on $500,000?
Should retirees take RMDs early in the year?
Should I convert $120,000 per year to a Roth to avoid RMDs?
What are the new rules for required minimum distributions?
Required Minimum Distributions Rules: Final Thoughts
Required minimum distributions rules are not optional guidelines but strict federal requirements with serious financial consequences for non-compliance. Understanding when your RMDs start at age 73, how to calculate them using the life expectancy tables, and which accounts are subject to these rules can save you from costly penalties.
The tax implications of RMDs extend far beyond the immediate income tax on withdrawals. Your distributions can affect Social Security taxation, Medicare premiums, and your overall retirement income strategy. Planning ahead with qualified charitable distributions, strategic Roth conversions, and careful timing can significantly reduce your lifetime tax burden.
I recommend marking your calendar with RMD deadlines, reviewing your account balances each December, and consulting with a tax professional before making any major decisions. The rules around required minimum distributions will continue to evolve, and staying informed is your best defense against unnecessary taxes and penalties in retirement.